The Christian Marriage is Indissoluble: A Plain Sermon Preached in Archbishop Tennyson's Chapel on the Fifteenth Sunday After Trinity, 1857, by James Galloway Cowan, is an important work that addresses Christians on the role and meaning of marriage in their lives. In the sermon, the author highlights the topic of the indissolubility of marriage in the context of the Christian faith, proving its special importance before God and people. The book inspires readers to think about the importance of commitment, understanding and tolerance in relationships, emphasizing that marriage in the Christian view is an extremely valuable union of two people under theological cover. "Christian marriage is indissoluble" is not only a simple sermon, but also a kind of guide in building and maintaining strong family relationships.